Digital book



FIG. 1 is a bottom, left, perspective view of a digital book laid open;

FIG. 2 is a front elevation view of the digital book laid open;

FIG. 3 is a bottom plan view of the digital book laid open;

FIG. 4 is a top plan view of the digital book laid open;

FIG. 5 is a rear elevation view of the digital book laid open;

FIG. 6 is a left elevation view of the digital book in FIG. 5;

FIG. 7 is a right elevation view of the digital book in FIG. 5; and,

FIG. 8 is a bottom, left, perspective view of the digital book closed.

The ornamental design for a digital book, as shown and described.